Churn operating mechanism



Ma y 18, 1948. E, M, SNOW 2,44l,727

cHURN OPERATING MECHANISM May 18, 1948. E. M. sNow 2,441,727

' CHURN OPERATING MECHANISM Filed June 6, 1945 3 Sheets-Sheet 3 lll/llllllll/ Patented May 18, 1948 UNITED STATES PATENT OFFICE i z,441,7z7 j w ``onUnN orEaA'rING MEoHANIsM Ernest M. Snow, Greenville, S. Application June 6,v 1945, Serial No.l 597,833

My invention relatesl to a machine for churning, beating or mixing materials.

An important object of th'e invention is' to provide a machine of the above mentioned character having variable speed gearing for driving the dasher. rod, thus eliminating the use of a belt drive. w

A further object'of the invention is toprovide means for mounting the motor upon the swinging arm of the support and connecting the armature shaft of the motor with the gearing, also mounted upon the swinging arm.

A further object of the invention isto provide adjustable means to mount the motor upon the swinging arm so that motors of difierent sizes may be used and will be properly c'orrelated with the gearing. i i

A further object of the invention is to provide means whereby the motor is pivotally mounted and is turned upon its pivot in changing'th'e gear speeds; w 1 o A further object of the invention is to fixedly mount the motor upon the arm and to shift: the driving gear longitudinallyiwith respect to the armature sh'aft for changing speeds.

A further object 'of the invention is to provide change speed gearings for use with low and high speed motors.

A further object of the invention isto provide an arrangement whereby the .dasher rod is held in an adjustable chuck and the dasher rod'may be vertically raised andlowered with respect to the receptacle so that the dash'ers will act upon the liquid material at differentelevations.

A further object'of the invention is to provide:

means whereby the dasher may be moved above the receptacle without separating the dasher rod from'the chuck.

A further object of the invention is to provide a machine of the above mentioned ch'aracter which is relatively simple, easy to operate, 'and having the gearing covered to `avoidi accidents.

Other objects and advantages of the invention will be apparent during the course of thefollowing description.

In the accompanying drawings forming a part of this application, andin which like numerals are employed to designate like parts of the same,

Figure 1 is a side elevation of a machine embodying my invention, parts in verticai 'sectiomv 4Claims. (01.7 4-7-16) i o 2 i V Figure 1a is a transverse section through lth'e Vertical adjustable bracket, taken on line 11m1? of Figure 1, z

Figure 2 is a plan'view of the machine, parts broken away and parts omitted,

Figure 3 is a side elevation, parts omitted, of a machine embodying the second form ofthe in vention, w

Figure 4 is a plan view of the same, parts omitted, i'

Figure 5 is a 'central Vertical section taken on line 5-,-5 of Figure 4, i o Figure 6'is a front elevation of the gearing1 shown in' Fgure 5, the housing omitted,

Figure '7 is a Vertical section taken on line 'l-'l of Figure 2, i o

Figure 8 is aifront elevation of the gearing shown in Fignre 77,7the housing being omitted,,

and, Figure 9 is a Vertical section taken online 9-9 of Figure 8;

In the drawings, wherein for the purpose of;l illustration are shown preferred embodiments of.

my invention; Figures 1, 2 and 6-9 inclusive show gearingA for use in connection with a high speedmotor. In these figures, the numeral |5 desig thereon. The lower knuckle |8 is supported by a collar |9, rigidly mounted upon the shaft IS at a desired elevation, The arm I'l includes horizontal arm Sections 20 and 2 I, connected by a Vertical web 22. Anyvsuitable means may be employed to holdthe'horizontal arm l'l in the selected adjust-v ed position, and for this purpose I preferably employ lug or lugs 23, integral with the collar |9 and arranged to enter notch or notches 24 in the lower collar |8.' These elements are preferably spaced for 90 degrees. 'This is the arrangement shownfini' my Patent 2,137,547.

A vertically 'adjustable' bracket 25 is arranged upon one side of the web 22,` and has elongatedslots 26,'to receive bolts 21, carried by the web 22 and adapted to clamp the bracket 25 in the selected'vertical elevation. At its top, the'bracket 25' hasahorizontal extension 28, slidably engag'- ing a horizontal boss 29, formed upon a curved supporting element or yoke 36. The supporting element 30 is pivotally connected with the extension 28 by a pivot element or bolt 3|. The supporting element 30 receives the bottom of the casing 32 of the high-speed motor, and is attached to th'is casing by screws 33 or the like. The pivot 3| is arranged at the longitudinal center of the armature shaft 34 of the motor. The motor is therefore mounted, to be bodily turned upon the Vertical axis or pivot 3 l.

The numeral 35, Figures 1 and '7, designates a Vertical sleeve or bearing, preferably formed integral with the outer-end of thezarm I'hand this bearing 35.V receives a rotatable Vertical sleeve 3.6. This Vertical sleeve is provided near and spaced from its lower end with a stop ring 31, prefer-- ably formed integral therewith to limit.. the. up- Ward movement of th'e sleeve 36. The sleeve 36`v is provided at its lower end with afcontraetble.

jaws 38, preferably formed integral with the which limits its upward movement. It is thus seen that the bearing-sleeve 49 serves to guide the armature shaft 46 in its swinging movement and will retain the worm wheel 48 in proper engagement with the worm teeth 46 or worm teeth 41, when shifted into such engagement.

Means are provided to laterally shift the bearing-sleeve 49 for shifting the worm wheel 48. This means comprises a collar 59, Figure 9, helcl within an annular groove 59, formed in the bearing-sleeve 49, and this collar is :carried by a horizontal strap 63, having elongated slots 6|, receiving screws 62 or the like, mounted upon the bracketV `5If. The Strap' 60`` is equipped with a handle' 63 for manipulati'on, and the strap 6| Vhas notches 64 in its upper edge, for receiving a' latch 65, pivoted at 66 With the bracket 5i.

shiftins'.4 the'strap 66 to the right, Figure 8,

2.0C chuck, including resilient spaced longitudinal i sleeve and tensioned to move outwardly to. the

ed' upon the Vertical sleeve 36', above. the bearing.

3.5.` The lower end-of the huhM' is. clampedE to the sleeve 36. by av set screw. 45; or the like. The gear member forms concentrilo horizontal gears 'of diiTerent' diameters. The gear member 43.. is. provided upon its upper. face and at its periph'- ery With an, annular set of worm teeth 46, form.-

ing the larger gear or worm wheel: The hub 4:4'

is providedA at its upper end. and uponits periphery with an annular set ofworm teeth. 41', thus providin'g an upper worm or gear of' smaller diameter; upon the free end of; the armature shaft .34 or to a shaf-t; attached to the armature shaft. This worm: wheel 48 is shi-ftable laterallyintov engagement with the' worm teeth v46 and the worm teeth- 41'.

The-a-rmature shaf't' 34* atits outer end is journalledfi in' abearing-sleeve 49, Figura' 9; andV the' end' 50= of the worm'- wheel 482 engages the outer end off thebearing--sl'eeve 49, which alsoserves as an end thrust bearing. The numeral 51| designates a Vertical; bracket, the lower end of which is forked to receive theouter end of' the arm- Il'l and is rig-idlyf securedthereto bybol'ts- 52. This' Vertical? bracket is providedi witlr alofwer horizontal: recess: 53; into. which the gear member 43- projects and` the bracket 5|.: is. provided: with anv upper :horizontalrecessl 54', the top. .of which isd'efined by ay horizontalf wall 55. lIlheforwrard end" of'l the recess 54% isz open, whi'l'eits real: end? is closed by averticLa-l``| wall 56', having an el'ongat'ed horizontal'` slot. 51: formedv thor-ein. The inner.v face of the wall 56 is slightly Curved andt'his-curvatureziszconcentric with. the'A piyotlz. 'Ihe end of? the, bearing-s'leeve '4151 abuts against the wall 56: and; this end: of. the bearing-sleeve. isslightly cunved in concentrie relation to the curvedi face of thewall 56.. The top; of thebea-ring-slieeve 4-9 enga-ges the: lowerface. of' the horizontal wall 55,

A' worm wheel 48' is rigidl'y mounted.

the worm wheel 48 is brought into engagement with thefiworm teeth 46, for efiecting low speed,

Wand the str-.apxis locked in this position by the latch 65 ngaginginto the outer notch 64. When the'strapis moved to the left, Figure 8, worm wheel 48 is 'brought into. engagement with worm wheelf 41:, for effecting high: speed.. The' strap 60 is now locked inthe: shifted pn'sitiflony by` the:

lat'ch engaging/ Vwithin the; inner' notclt '6.4. The gearingf;l including. the gear member' '4.32, is encl'osed within azhousing6'11, which mayinclude upper and lower parts 6-81 and` 6.9; securedf together by -bolts 19 or the like. The top of thev upper part 63 may extend overv the bracket 511 and be secured' theretoby bolts Tll. 'I'h'e' lower' part- 69- has` reduced ext'ensi'on 7:2, receivi'ng thev bearing 35-, as shown; This housing-'willi have asuitable opening for the passage of' the strap 66; Thetop: portion 681hasan upstanding' sleeve' TZ'.

The Vertical. sleeve 36' is: open at its toph and bott'om and. its bore is. of: a suitable diamet'er1 for s'lidably' receiving a verti'cal dash'er rod 123, extending below the sleeve 36 and its chuck and" alsozz extendingrabove the.. sleeve.V 36? andV the sleeve 1,*2! The dasher' rod; '13y extends downwardly. into` a Vertical: recentaclefm; mounted' upon. the: basel5, to receive the material to be churned, beaten 01:. mixed; This; material may: be. cream',. to. be treated fon making: butter: The: dashzer` rod 1'3; is equippedzwith: dash'es 1.5... 'llheV dasher rod 1.3* extends through. the: chuckA embodying; the: jaws' 36', and' the'-'s1eeve:"4|f is; manipulated tol clamp theiaws 38- to the dasherirod,.wherebythe d'asher rod will rotate with the Vertical sleeve.- 36. Itis thus seen. that'v the' dasher rod: 13' may' be' vertically adjusted to bring; the; das-her' 1:1: at' different elevations, and' thenf looked.. in adiustmentto-the vertical/sleevez36r i The operationv of the' machine; is as f'ollows.

yIn thechurning: of cream in producing lbutter, it' is desirable. to" adjust the -das-hes 15 tovarious depths in' the. creain being churned. This is rendered possible by'the-Vertical adjustment of the dasher rod 13. I have also foundthat more satisfaotory results are obtained inz churning cream: for makingbutterto employ aspeed; of.V rotationV not. to exceedf 400 R.. P. M, for the dasher. Byemploying the. worm. drive before described, this approx-imate'.speed.ofi 400 R. P. M. may he had. The gearingzprovides.two'speeds for driving the dashers, which has` proverry to be valuable. in. produci'ngA butter and forbeat-ing or mixing many' types' of: ffood. By slowim-:r down the speed .ofs the dasher., the 'butter' may be gat'hered: Theedashers=15 'may' be arranged; above the receptaclef 14,. so:v that. the arm: |.T may. be

swung from over the receptacle, to permit of the ready removal of the receptacle.

In Figures 3, 4, 5 and 6 I have shown a modifiecl form of the invention, wherein a low speed motor is used. In these figures, .a horzontal gear member 18 is mountedupon the Verticalsleeve 36. The horzontal gear member 18 includes a Vertical hub 11, the lower end of which is clamped to theV sleeve `36 .by a set screw v18 or the like. The gear member 18 is provided at its periphery and upon its upper face with an annular setof gear teeth 19, which are preferablyradiallyinclined. Atlits top, the hub 11 has an annular set of bevel gear teeth 80. The gear teeth 19 are included in a larger horzontal gear and the bevel gear teeth 80 are included in an upper smaller horzontal bevel gear. Mounted upon the armature shaft 34' is a double gear member 8|, having bevel gear teeth 82 at one end and provided upon its periphery and 'at its opposite end with inclined gear teeth 83. The member 8| is splined upon the armature shaft 34' to move longitudinally thereof, but cannot turn with relation thereto. The bevel gear teeth 82 are adapted to be shifted into engagement with the bevel gear teeth 80 and the gear teeth 83 into engagement with the gear teeth 19. The gear teeth 83 are preferably laterally inclined. The forward end of the armature shaft 34' is reduced, as shown at 84, for in,- sertion within a bearing opening 85, formed in a horzontal plate 88, having a Vertical opening 81 for receiving the upper end of the sleeve 36. The horzontal plate 86 is rigidly secured to a Vertical cap 88, mounted upon the upper end of a Vertical bracket 89 an-d secured thereto by bolts 98'. The cap 88 forms with the top of the bracket 89 a bearing 9|' for the armature shaft 34'. The lower end of the bracket 89 is forked and straddles the outer end portion of the arm |1 and is clamped thereto by bolts 92. The armature shaft 34' is included in a low speed motor 93, rigidly mounted upon a curved plate or yoke 94, carried by a Vertical bracket 94', mounted 'upon the web 22 by bolts 98, passing through elongated slots 91. The longitudinal center of the armatura shaft 34' is in alignment with the longitudinal center of the sleeve 36, as shown.

Means are provided to longitudinally shift the double gear member 8|, including a fork 98, Operating within an annular groove 99 of the gear member, and this fork is pivotally connected at 188 with a lever |0l, pivoted at |82 with the horzontal plate 86. This horzontal plate has 'a central recess |83. The pivot |02 is sufii'ciently loose to permit of a slightly Vertical swinging movement of the lever I 00, so that this lever may be moved into undercut notches |84, formed in the upper edge of a fixed horzontal plate |85, to lock the lever in the outer or inner position.

The gears are inclosed within a housing |08, including upper and lower parts |01 and |88, secured together by bolts 189. The lower part |81 has a depending sleeve [09 to receive the bearing 35 and to be secured thereto by screws Ilu or the like. The housing may be further secured to the bracket 89, if desired.

The operation of the second form of the machine is as follows.

When the lever l8| is swung to the outer position, Figure 4, the gear teeth 83 will engage the gear teeth 19 for effecting a slow drive of the sleeve 38 and dasher rod 13. When it is desired to drive the dasher rod at a high speed, the'lever ll is swung to the right, Figure 4, to the inner position, and bevel gear teeth 82 will thenengage bevel gear teeth 80, for effecti'ng high speed. Thelever 10| is swung vertically slightly when moved into or out of the notches |04. A11 other parts of the apparatus are identical with those shown and described in connection withthe first form of the invention.

It isrto be understood that the forms of my in- Vention herein shown and described are to be taken as preferred eXamples of the same, and that various Vchanges in the shape, size and arrangement of parts may be resorted to without departing from the spirit of my invention or the scope of the subjoined claims.

Having thus described my invention, what I claim is:

1. An upstandingr support, a generally horzontal arm mounted upon the support and having a bearing, a generally Verti-cal vsleeve held within the bearing, a generally Vertical shaft held within the sleeve for rotation therewith, a gear unit mounted upon the sleeve to turn it and including generally horzontal concentric gears of different diameters, a motor having a generally horizontal armature shaft, means to pivotally mount the motor upon the arm to swing generally horizontally, a gear mounted upon the armature shaft to be brought into engagement with the gears of different diameters by the swinging movement of the motor, and means to swing the motor upon its pivot.

2. An upstanding support, a generally horizontal arm mounted upon the support, a generally Vertical shaft rotatably mounted upon the arm, a gear unit mounted upon the shaft to tum it and including generally horzontal concentric gears of different diameters, a motor having a generally horzontal armature shaft, means to pivotally mount the motor upon the arm to swing generally horizontally, a gear mounted upon the armature shaft to be brought into engagement with the gears of different diameters by the swinging movement of the motor, and means to swing the motor upon its pivot.

3. An upstanding support, a horizontally swinging arm mounted upon the support, and having a substantially Vertical bearing, a substantially Vertical sleeve rotatable within the bearing and having its opposite ends open, a substantially Vertical rod slidably mounted within the sleeve to project above and below the same and to be moved longitudinally therein, means for detachably looking the rod to the sleeve, concentric gears of diiferent diameters mounted upon the upper -end of the sleeve, a motor having a generally horzontal armatura shaft, means to pivotally mount the motor upon theV arm so that the motor may be swung horizontally, a bracket mounted upon the arm and having an elongated generally horzontal recess having a top wall, a sleeve Within the recess and engaging the top wall and receiving the armature shaft 'therein, a gear mounted upon the armature shaft to engage with the gears of different diameters, and means to Shift the sleeve latterly.

4. An upstanding support, a horizontally swinging arm mounted upon the support and having a substantially Vertical bearing, a substantially Vertical sleeve rotatable Within the bearing and having its opposite ends open, a substantially vertical rod slidably mounted within thesleeve to project above and below the same and to be moved longitudinally therein, means for detachably looking the rod to the sleeve, concentric 2.4.Amamf i Nu mber M111::tematsr 01m1) The following references areof' record in the file ofthis patent:

UNITED. STATES PTENTS Name Date 913,623 Dallison Feb. 23, 11909- 942,116 Van Houten et al. Dee. 7, 1909' 1,121,44-2 Zink Deo. 1'5; 1914 1,151,295' Schlueter Augf. 24, 191'5 1,193-,448 Ashton et al Aug..1, 1916 1,333,379 Black Mar. 91, 1920' 1,598399' Simmondsv Aug. 312, 19261 2,024v,340 Craddook Deo. 17;, 19351 2 137.547 Snow Nov. 2'2. 1'938 mam 

